Закладки от MindSky

Provides a button to save the current webpage title and URL to your account at https://mind.im/bookmarks
Save and organize bookmarks
Thumbnail previews
Dark and light themes
Tagging
Nested Folders
Search
Open all YouTube bookmarks in folder/tag as a playlist
Watch bookmarked videos without leaving
Drag and drop design

More info at http://sky.mind.im/bookmarks-manager